Light path characterization, traffic protection, and wavelength defragmentation
AssigneeVerizon Patent and Licensing Inc.
InventorsGlenn A. Wellbrock, Tiejun J. Xia
Life of this patent
Estimating the term…
Abstract
A method for managing an optical network having a plurality of nodes interconnected by a plurality of fiber links includes installing one or more active reconfigurable optical add/drop multiplexer (ROADM) cards into a node and installing a spare ROADM card into the node. The one or more active ROADM cards are configured to pass optical traffic to and from the optical network. The installed spare ROADM card is remotely activated to pass optical traffic to and from the optical network, subsequent to configuring the one or more active ROADM cards, based on one of: an event or expiration of a time period.
Claims22
A method for managing an optical network having a plurality of nodes interconnected by a plurality of fiber links, comprising:
- configuring one or more active reconfigurable optical add/drop multiplexer (ROADM) cards installed into a node to pass optical traffic to and from the optical network;
- and
- remotely activating an installed, but not yet activated, spare ROADM card to pass optical traffic to and from the optical network, subsequent to configuring the one or more active ROADM cards, based on one of:
- an event or expiration of a time period.
An optical node comprising:
- one or more active reconfigurable optical add/drop multiplexers (ROADM) elements;
- and
- one or more spare ROADM elements;
- and
- a processor to:
- configure the one or more active ROADM elements to pass optical traffic to and from an optical network;
- and
- receive remote instructions to activate the spare, but not yet active, ROADM element to pass optical traffic to and from the optical network, subsequent to configuring the one or more active ROADM elements, based on one of an event or expiration of a time period.
A system comprising:
- a plurality of optical fiber links;
- a plurality of optical nodes interconnected with the optical fiber links, the optical nodes comprising:
- one or more active reconfigurable optical add/drop multiplexers (ROADM) cards;
- one or more spare ROADM cards;
- and
- a processor to:
- configure the one or more active ROADM cards to pass optical traffic to and from an optical network;
- and
- receive remote instructions to activate at least one of the spare, but not yet active, ROADM cards to pass optical traffic to and from the optical network, subsequent to configuring the one or more active ROADM cards, based on one of an event or expiration of a time period;
- and
- a network management system operatively coupled to the plurality of optical nodes to transmit configuration instructions to the one or more active ROADM cards and the at least one of the spare ROADM cards in each of the plurality of optical nodes.
Dependencies are inferred from the claim text.